Asymmetries of sleep spindles and beta activity in pediatric EEG.
Unilateral suppression of beta activity, unilateral suppression of sleep spindles, and unilateral delta slowing on EEG have not been previously compared regarding accompanying neuroradiological (NR) and clinical neurological (CN) findings in children. We studied EEGs in children under age 10 years with unilateral beta suppression (n = 80), spindle suppression (n = 51) or unilateral delta slowing (n = 49). There were no significant differences between the three groups of abnormal EEGs in their relationships with NR and CN. Unilateral suppression of sleep spindles and beta activity are at least as accurate as focal slowing in lateralizing NR and CN findings.
Willis
J
J
Department of Neurology, Tulane University School of Medicine, New Orleans, Louisiana.
Schiffman
R
R
Rosman
N P
NP
Kwan
E S
ES
Ehrenberg
B L
BL
Rice
J C
JC
D001611:Beta Rhythm; D002648:Child; D002675:Child, Preschool; D003700:Delta Rhythm; D004569:Electroencephalography; D006801:Humans; D007223:Infant; D012890:Sleep / Q000502:physiology*